COLD WORK ALLOY TOOL STEEL FOR MOULDS

NORM: ISO 4957

Anmeldung:

Steel susceptible to dies for chemically aggressive materials, plastic moulds, elements of moulds for die casting of the alloys of light non-ferrous metals, tools and moulds for corrosive plastics and polymers, food industry etc.

Chemische Zusammensetzung:

CSiMnPSCrMoWVCoNi
0,33- 0,45Max 1,00Max 1,50Max 0,030Max 0,03015,50- 17,500,80- 1,30---Max 1,00

Mechanische Eigenschaften:

Hardness after Tempering ºC Symbol Value
Soft annealing HB ≤250
Toughening HB 300
Quenching with 1010 ºC in oil HRC 49
Quenching with 1010 ºC in oil and tempering

(cooling during quenching can also be performed in the air or gradually in the salt bath at 500–550 ºC and then cooled in the air)

200 HRC 47
300 HRC 46
400 HRC 36.5
450 HRC 37
500 HRC 43
550 HRC 48
600 HRC 32.5

PHYSIKALISCHE EIGENSCHAFTEN:

Property Unit Value
Density, ρ g*cm-3 7.60
Thermal expansion, α20-100ºC) K-1 10.4*10-6
Thermal conductivity, λ20ºC) W*m-1*K-1 26

Technologische Verarbeitung:

Technological treatment processes Possible application Temperature, °C
Hot forming Forging + 1100-750
Rolling + 1100-750
Treatment Heat treatment Quenching + 1000-1040
Tempering + 550-650
Precipitation strengthening Supersaturation
Ageing
Annealing Soft annealing + 780-820
Stress relieving + 600-700
Thermochemical treatment Nitriding + 470-550
Other

INTERNATIONALE STAHLSORTEN:

ISO EN Russia
X38CrMo16 ISO 4957:2004 X38CrMo16 ISO 4957:2004
US Japan China